Improvement in watch-dials



'UNITED STATES PATENT OEEIcE.

D. AZR() A. BUCK, OF IVATERBURY, CONNECTICUT, ASSIGNOB TC HIMSELF ANDEDWARD A. LOCKE, OF SAME PLACE.

IMPROVEM ENT IN WATCH-DIALS.

Specification formingpart of Letters Patent No. 222,658, dated December'1G, 1879; application filed September 26, 1879.

To all whom it may concern Be it known that I, D. AZR() A. BUCK, ofVaterbury, in the county of New Haven, and in the State of' Connecticut,have invented certain new and useful Improvements in Vatch-Dials 5 and Ido hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making a part ofl this specification, in which- Figure l is aperspective view of my improved dial in place within a case. Fig. 2 is alike view of' the same withthe figure-plate removed; and Figs. 3 and 4are, respectively,

lcross-sections upon central lines of Figs'l and 2.

Letters of like name and kind refer to like part-s in each ofthefigures.

The design of my invention is to enable watch-dials to be easily andcheaply secured in place an d removed therefrom, and to provideaccommodation for the dial-wheels; to which enditconsists,principally,in awatch-dial composed of a recessed base and aligure-plate fitted over said recess, and provided between said partswith space for dial-wheels, substantially as and for the purposehereinafter specified.

It consists, further, in a detachable watchdial adapted to be secured inplace by being fitted within and sprung into a rabbet, which is formedwithin a case-center or watch-plate, and receives and embraces its edge,substantially as and for the purpose herein after sho wn.

In the annexed drawings, A represents a circular met-al plate providedwith a raised edge, a, within'which is formed a rabbet, af, that iseither square or slightly undercut. Fitted within the rabbet a isaplate, B, which corresponds to and closely fills the same, and

is held in place by the spring of the metal.

The outer plate, B, is held at such distance from the recessed outerface of the plate A as wheels as lnay be required for connecting thehands with stem setting mechanism, said wheels being pivoted upon saidplate A.

The plate B is provided upon its outer face with the usual divisions andsigns, and, in connection with the plate A, is to be secured within thecase of a watch, and in such position will perform the usual functionsof a dial.

To enable the dial-wheels to be exposed it is only necessary that thehands should be taken off', when said plate' B may be easily and quicklyremoved.

It desired, the baseplate A may also be secured in place within thecase-center by means of a rabbet formed in the latter, and caused toembrace the edge of said plate, while in case of the employment of' asingle dial, of' usual form, no other fastening is required.

A material saving in expense is effected over the usual method by mymethod of' securing in place a dial, while by the use of the doublehollow dial a much better and more convenient arrangement of thedial-wheels is secured.

Having thus fully set forth the nature and merits of my invention, whatI claim as new y,

1. A watch-dial composed of' a recessed base and a figure-plate fittedover said recess, and provided between said parts with space fordial-wheels, substantially as and for the purpose specified.

2. A detachable watclrdial adapted to be secured in place by beingfitted within and sprung into a rabbet formed within a casecenter orwatch-plate, which receives and em braces its edge, substantially as andfor the purpose shown.

In testimony that I claim the foregoing I have hereunto set my hand this6th day of September, 1879.

D. AZRO A. BUCK.

Witnesses:

GEO. S. PnlNDLE, J As. E. HU'roHINsoN.

